ORIGINAL: mstam1971
ORIGINAL: jedijody
Martin, leave your gas can out side in the heat of the day all sealed up, don't let the pressure out and leave it until the next morning. It will go from slack static pressure to start with, to blown up high pressure when it gets warm, to colapsed vucuum when it cools off. That is what your method can do to a carbs metering diaphragm. They need to be able to constantly equalize ambient pressure variations to work properly, period, that's how they were designed to function.
That's why I dropped a condom (if you can still remember) in the container and punched a tiny little hole the size of the tip of a needle in both the container and the condom so the air pressure can stabilize when not flying.
Just putting a small fuel nipple in the center of the lid and the lid itself will allow enough air to pass for the pressure to stabilize. Making holes in the container makes the container obsolete and the diaphragm will see the air pressure as it is in the fuselage.
Oh, and I ordered a HeliCoil 10MMx1 set, should be in tomorrow. Nobody here that carries the 10x1, 14MM no problem, $19 Fix-A-Thred at advance autoparts.
So if you put a hole in both what is the difference, than just using the canister with a hole.